Lighting fixture



T. DAHL.

LIGHTING FIXTURE.

APPLICATION FILED FEB. 15, I921.'

1,417,145, 7 Patentetl May 23, 1922.

screws 16 extending therethrough and into the hub. The tongues preferably extend somewhat beyond the inner periphery of the rim as at 17 and below a usual form of flange 18 on the lamp socket, so that the latter will be prevented from dropping should it be disconnected.

The arms may have any appropriate form or design preferably ornamental. In the preferred embodiment bracket arms of ogee or S-shape are employed as shown. Structurally this provides a rigid support for the shade although the arms are slender, for, the greatest thickness and, therefore, the greatest stiffness is in a vertical line, that is, in the direction in which the strain is ap plied. The arrangement shown provides a trusslike support in that any tendency for the weight of the shade to draw the outer ends of the arms downwardly would result in the tongues 15 being drawn slightly upwardly about the screws 16 and firmly against the rim. 3 of the hub, thus assuring the desired rigidity of the assembly. The symmetrical arrangement of the arms and the axial arrangement of the hub and shade result in the strains being evenly balanced and the weight evenly distributed, and the shade being accurately and firmly supported in a horizontal plane. The slender support ing bracket arms ll. as shown in the drawings are in visible position above the shade and afford to the entire fixture an elegant, artistic and distinctive appearance.

It will be seen that no securing or corn necting parts intervene between the hub and the lamp socket so that the hub need be made only slightly larger in internal diameter than the socket and even though thickwalled and strong, its external diameter will remain small, and will. provide the desired ornamental. effect in combination with the relatively long radiating arms, while the danger of jamming of any intervening securing member between the hub and socket is entlrely eliminated. The radiating arms being secured against the rim at the bottom of the hub by upwardly extending screws or equivalent means, the mechanical connections between the arms and the hub remain invisible when the fixture is viewed in in stalled position. It will also be seen that since the supporting means for the shade extends entirely within the same from the upper end thereof, it is invisible from the exterior and by the arrangement of parts as shown, the upper periphery of the shade comes substantially in the plane of the outer ends of the arms. Thus the beauty of the fixture is in no way detracted from by any visibility from the exterior when installed, of screw, bolt, rivet heads or other mechanical fastening means. Since the radiating arms are of rigid construction, the weight of the shade bears directly downwardly upon the supporting feet at their outer ends,

and the weight of the shade will not draw the radiating arms inwardly and exert strain upon the frame of the shade. as might be the case if the radiating arms were flexible rather than rigid.

Since the shade rests upon the arms by gravity and is not clamped in place, its frame is, moreover, free to expand or con-- tract with changes of temperature resulting particularly from putting the light on or oil and this without producing any extra strain upon the shade,

The broader features of the invention can be embodied in a construction in which the arms are joined into an integral plate; also in constructions in which the arms are formed integrally with the body or secured thereto by means other than the screws disclosed.

One distinctive design of lamp in which the present invention is prcibrably embodied shown in my copending design application, Serial No. 43-1356. liled llcc. 30. 1920. It will be seen that all chains or other ungainly supporting elements are eliminated as are heavy dome structures, the outwardly extending bracket arms ll; providing a pleasing and ornamental appearance and never-- theless affording the meclmnical strength requisite for firmly supporting the shade.

It will be understood that though the in vention is preferably applied to pendent lighting fixtures, some of the features (here-- of may be applied to floor lamps or other fix-- turcs and that it is not limited in its uses to electric fixtures but may also be employed in gas fixtures.

It will be understorul that although the shade supporting parts 1.112 are proferably cast in one piece with the arms 1-! as shown, they may be made of separate pieces screwed, soldered or otherwise connected. with respect to the arms, the term integral employed in certain of the claims to define the relation of the arms to the shade carrying elements being intended to define :urv relation in which all these combined elemcnts constitute a substantially rigid unit, as distinguished from a (.(lllSfllltjllUll in which these elements are movable or displaceable with respect to each other in the process of applying or removing the shade.

it will thus be seen that there is herein described a structure in which the several features of this invention are embodied. and which attains the various objects of the invention and is well suited .o meet the rcquirements of practical use.

As many changes could be made in the above construction, and many apparcntlv widely different embodiments of this invention could be made without departing from the scope thereof. it is intended that all, matter contained in the above description or lOO Cir

shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

lilaving thus described my invention what I. claim as new and desire to secure by Let 1. In a lightingfiirture, in combination, a support, an open-top shade having a plurality of inwardly projecting support ele ments, a substantially rigid symmetrical carrying structure for said shade including arms radiating outwardly from said support for a distance nearly equal to the radius of said shade, one arm corresponding to each supporting element, said arms being constructed and arranged each to provide a rest for the correspondlng support element and to obstruct said shade against rotation about its axis, whereby the shade is .20

carried without positive clamping or securing means.

acup-shaped hub enclosing the upper end of said socket and carried by sald support,

a plurality of identical'rigid arms, each having an integral portion extending under 1 and directly in cont-act with the bottom of the rim oi said hub and each secured thereto, each arm promoting outwardly from the rim tor a substantial distance, and means substantially at the outer ends oi sa1d arms for supporting a-shade in position co-axlal of sai d hub.

3. In a lighting fixture, in combination, a

support, a hub or bodycarried thereby, a plurality of: relatively stni arms arranged at substantially equal angles and pro ecting j outivzirdly and curveddownwardly from said.

hub, eachsaid arm ha dug an integral tongue "at its inner endextendirig under the lower surface ot said hub, screws securing said.

tongues to saidhub, and means at the outer ends of said arms for supporting a lamp nation. a suspension member, a cup-shaped shade in position coaxial of said hub.

in a pendenthghting fixture, 1n combihub'memloer extending downwardly from the H lower end of sa d suspenslon member, a

2. in a lighting fixture, in combination, a support, an electrlc socket mounted thereon,

tached from the suspension member.

5. In a lighting fixture, in combination, a bracket arm having a tongue at one end ex tending in the general direction of the length oi said arm, an integral leg near the opposite end or said arm extending outwardly at right angles to the general direction of the length of said arm and having a foot parallel to said tongue for supporting an element of a shade.

6. In a lighting fixture, incombination,

an open-top shade having inwardly extending supporting loops below the upper ends thereof and a fixture therefor including a plurality of radial arms having integral downwardly extending supporting feet for said loops whereby the upper end of said shade will be substantially in the same plane as the outer ends of said arms, and said loops and feet will be concealed. v

7. ln a lighting fixture, in combination, an axial support, a hub coaxial therewith constituting a cover for a lamp socket to be carried by said support, said hub hav ing a' lower rim, a plurality of identical arms in radial planes extending outwardly from said hub,=each said arm having an integral portion extending under and secured againstsaid rim, each said arm havin a shade supporting toot near the outerend thereof for extending within a shade to be supported on said feet. i

Signed at New York city. in the county of New York and Eltate of New York this 11 day ,ofFeb. A. D. 1921.

"'rrrnnn DAHL. 

